Storm Station
Castalian Springs, Tennessee
65°
Mostly clear· Feels like 65°·Light air 4 mph NNE
Mostly clear, with a low around 51. Northeast wind around 5 mph.
-UV
-Air quality
31%Humidity
31%Cloud

What is measuring near here

The 4 instruments nearest Castalian Springs, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.7 miles away.

measured now2 instruments

SumnerXNX

At an airfield/6.3 mi away/551 ft/53 ft below here

temp, wind, gust, visibility, precip, pressure

Rank205of 425

measured daily2 instruments

Gallatin 6.3 ETN-SR-108

In a volunteer observer's own ground/2.7 mi away/454 ft/150 ft below here

precip, snowfall, snow depth

Rank-

Bethpage 1SBETT1

At a cooperative observer's station/4.8 mi away/594 ft/10 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Sumner, drawn

The nearest airport reporting now, 6.3 mi from Castalian Springs. From its report of Sep 27, 2026, 3:55 AM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over Sumner, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT XNXFIG. A THE SKY OVER SUMNERSECTION, HEIGHT ABOVE THE STATION TO SCALE, EACH LAYER AT THE HEIGHT OF ITS BASE AS REPORTED; COVER IN EIGHTHS OF THE SKY; TOPS NOT MEASUREDFT ABOVE THE STATION05001,0001,5002,0002,5003,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLESumner, the skySTATION REPORT · ASOS XNXTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-XNX-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

50.0 F with a dew point of 48.2 F, 93 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 400 ft up.

Chart of the air at Sumner: temperature 50.0 degrees Fahrenheit and dew point 48.2, 93 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 400 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT XNXFIG. B THE AIR AT SUMNERTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00040 F50 F60 FSATURATES 400 FT ABOVE THE STATION, AT 47.7 FTEMPERATURE AND DEW POINT 50.0 F, 48.2 FRELATIVE HUMIDITY 93 PER CENTTHE AIR COOLS ABOUT 5.4 F EACH 1,000 FT IT RISES, AND ITS DEW POINT ABOUT 1 FSOLID: THE LIFTED AIR'S TEMPERATURE; DASHED: ITS DEW POINTTITLESumner, the airSTATION REPORT · ASOS XNXTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-XNX-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Sumner, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT XNXFIG. C THE WIND AT SUMNERPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLESumner, the windSTATION REPORT · ASOS XNXTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-XNX-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Sumner, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Bethpage 1S (BETT1), 4.8 miles from here, read 26 Sep, 07:00. measured daily

Elsewhere in Tennessee

23 places, each with its own forecast and its own instruments.

Near Castalian Springs

The nearest places, each with its own forecast and the instruments nearest it.